Full-Time

Reactor Components Design Engineering Assistant

AtkinsRéalis

AtkinsRéalis

10,001+ employees

Engineering services for infrastructure and energy

No salary listed

Mississauga, ON, Canada

Hybrid

Hybrid work model; on-site in Mississauga, Ontario, Canada.

Bachelor's, Master's

Category
Mechanical Engineering (1)

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Requirements
  • Bachelor's or Graduate degree in Mechanical Engineering (or equivalent) from a university of recognized standing.
  • Recent graduate up to 6 years of Mechanical Design experience.
  • Experience in classical stress calculation.
  • Ability to work as part of a multi-disciplinary team.
  • Ability to work independently and demonstrate problem-solving skills.
Responsibilities
  • Perform conceptual and detail design engineering work for one or more reactor components to applicable codes, standards and procedures.
  • The design activities include but are not limited to the preparation of design documents, technical reports, including technical calculations and drawings.
  • Supervised by senior engineers, while adhering to project plans and schedules, conduct phases of engineering work such as supporting proposal preparation, design engineering, testing, procurement, as well as manufacturing, and installation support.
  • Prepare responses to technical questions, from reviewers or clients.
  • Report progress on day-to-day work to leads and managers.
  • Develop information and prepare technical documents, such as: engineering drawings and bill of materials, calculations, design specifications, design assessment, design requirements, design manuals, technical specifications (for procurement, fabrication, and site installation), testing specifications and reports, commissioning specifications, etc.
  • Support the leads in preparing TSSA registration packages for pressure boundary designs.
  • Support the leads in interfaces with the regulatory bodies, such as: TSSA and CNSC, as required.
  • Perform reviews and design verification for the design and engineering work done by others, per qualifications.
  • Support field construction and execution activities, such as: field changes, design revisions, commissioning, as needed.
Desired Qualifications
  • Trained and experienced in the application of Geometric Dimensioning and Tolerancing (GD&T).
  • Drive for continuous learning.
  • Good time management skills.
  • Strong written and oral communication skills.

AtkinsRéalis provides engineering services focused on nuclear and infrastructure projects, connecting people, data and technology to transform energy systems and infrastructure worldwide. Its offering combines consulting, design, engineering and project management delivered from concept to commissioning by a global team of experts. The company differentiates itself through its global reach and end-to-end capability across conventional engineering and nuclear sectors, enabling coordinated multi-discipline delivery. Its goal is to improve infrastructure and energy systems worldwide by delivering integrated, high-quality engineering solutions that meet client needs and industry standards.

Company Size

10,001+

Company Stage

Acquired

Total Funding

$2.8B

Headquarters

Epsom, United Kingdom

Founded

1938

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Simplify Jobs

Simplify's Take

What believers are saying

  • Q2 2026 revenue rose 10% to $3.0 billion, with backlog at $20.2 billion.
  • Nuclear revenue jumped 18.3% to $671.2 million; guidance rose to $2.7 billion.
  • TOBIN closed in July 2026, and WGA and Coras add Australia and Ireland scale.

What critics are saying

  • SPEA collective agreements with Candu Energy expire December 31, 2026, raising strike risk.
  • Q2 2026 USLA organic revenue fell 2% on award delays and weak emergency work.
  • Nuclear backlog fell 25% year over year to $4.2 billion, risking 2027 revenue conversion.

What makes AtkinsRéalis unique

  • AtkinsRéalis owns Candu Energy, pairing nuclear services with engineering across 60 disciplines.
  • EDF and Sizewell C awarded AtkinsRéalis a five-year UK nuclear framework on May 26, 2026.
  • Board additions Amy Bunszel and Bill Ruh add Autodesk and GE Digital expertise.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

401(k) Company Match

401(k) Retirement Plan

Unlimited Paid Time Off

Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

1%

1 year growth

1%

2 year growth

0%
Yahoo Finance
Aug 7th, 2026
AtkinsRéalis' nuclear revenue up 18% to $671M as union calls for fair contract

The Society of Professional Engineers and Associates (SPEA) says AtkinsRéalis' strong second-quarter nuclear results underscore the value of engineers driving that growth. The company's nuclear segment generated $671.2 million in revenue, up 18.3% year-over-year, whilst Nuclear Segment Adjusted EBIT rose 20.8% to $77.0 million. AtkinsRéalis raised its full-year 2026 nuclear revenue outlook to approximately $2.7 billion from $2.5 billion. SPEA's collective agreements with Candu Energy, an AtkinsRéalis subsidiary, expire at year-end. SPEA President Mark Chudak said fair agreements must recognise employees' contributions. The results follow Canada's June nuclear strategy, which targets building up to 10 new large-scale reactors and establishing at least four international markets for Canadian reactor technology by 2040.

Associated Press
Aug 6th, 2026
AtkinsRéalis Q2 revenue up 10% to $3B, adjusted EPS rises 20% to $0.97

AtkinsRéalis reported second quarter 2026 revenue of $3.0 billion, up 10% year-over-year, with segment adjusted EBIT increasing 10% to $271.4 million. The engineering services and nuclear company achieved a quarterly record adjusted EBITDA of $292.9 million, up 14%. Diluted earnings per share reached $0.59, whilst adjusted diluted EPS rose 20% to $0.97. The company generated $83.5 million in net cash from operating activities and held a backlog of $20.2 billion at quarter's end. Nuclear revenue grew 18% to $671.2 million, prompting the company to raise its full-year nuclear revenue outlook to approximately $2.7 billion from $2.5 billion. Engineering services regions revenue increased 5% to $2.0 billion. AtkinsRéalis returned $245.0 million to shareholders through share repurchases and dividends during the quarter.

Associated Press
Jul 13th, 2026
AtkinsRéalis strengthens board with two AI and technology experts

AtkinsRéalis has appointed Amy Bunszel and Bill Ruh to its board of directors, effective 13 July 2026. The appointments aim to strengthen the board's capabilities in artificial intelligence, digital transformation, and emerging technologies. Bunszel is executive vice president of Autodesk's Architecture, Engineering and Construction business, overseeing a global software portfolio and a team of more than 2,000 professionals. She has over 25 years of experience leading product and digital transformations. Ruh is a technology executive with more than 35 years of experience in digital transformation. He previously served as CEO of GE Digital and chief digital officer at General Electric, where he led industrial digital transformations and deployed AI and cloud platforms. The appointments follow a selection process led by the Governance, Ethics and Sustainability Committee.

Yahoo Finance
Jun 5th, 2026
AtkinsRéalis secures EDF nuclear framework and names Byron Bright as US president from July 2026

AtkinsRéalis Group has announced Byron Bright will become President, US, on 1 July 2026, succeeding Steve Morriss, who will continue leading the global Minerals & Metals business until year-end. The company has also been appointed by EDF and Sizewell C Limited to a long-term professional services framework for UK nuclear projects. The appointments reinforce AtkinsRéalis' position in nuclear, transport and infrastructure sectors, supporting a multiyear stream of UK nuclear work. However, analysts note earnings may contract from recent levels, with concerns about margin sustainability and reliance on non-cash earnings. Community fair value estimates range between CA$99.37 and CA$117.29, with shares potentially trading 17% above fair value despite recent pullbacks. Total capital raised has reached $295 million across multiple funding rounds.

PR Newswire
Jun 2nd, 2026
AtkinsRéalis names Byron Bright as US president in planned succession

AtkinsRéalis Group Inc. has appointed Byron Bright as President, U.S., effective 1 July 2026, succeeding Steve Morriss in a planned transition. Morriss will remain with the company until year-end, overseeing the global Minerals & Metals business and hyperscaler growth market. Bright brings over 25 years of experience in engineering and government services. He previously served as Chief Operating Officer at KBR, Inc., where he helped scale the government business through organic growth and strategic acquisitions. The appointment comes as AtkinsRéalis strengthens its U.S. position, rising from 20th to 16th in the ENR 2026 Top 20 Design Firms ranking whilst delivering record backlog in its first quarter.